Apparatus for use in applying pressure to shoe bottoms



Feb. 4-, 1936. KENNISON 2,029,324

APPARATUS FOR USE IN APPLYING PRESSURE TO SHOE BOTTOMS Filed April 26, 1934 4 Sheets-Sheet 1 Feb 1936. F. KENNISON 2,029,324

APPARATUS FOR USE IN APPLYING PRESSURE TO SHOE BOTTOMS Filed 26, 1954 4 Sheets-Sheet 2 a R Q Feb. 4, 1936. v F. KENNISON 2,029,324

APPARATUS FOR USE IN APPLYING PRESSURE TO SHOE BOTTOMS Filed April 26, 19:54 4 Sheets-Sheet 5 Fig: 5.

eh. 4, 1936. KENNISON 2,029,324

APPARATUS FOR USE IN APPLYING'PRESSURE TO SHOE BOTTOMS Filed April 26, 1934 4 Sheets-Sheet 4 Patented Feb. 4, 1936 UNITED STATES PA-TENT OFFICE APPARATUS FOR USE IN APPLYING PRESSURE T SHOE BOTTOMS Application April 26, 1934, Serial No. 722,537

41 Claims. (01. 12-33) This invention relates to improvements in apparatus for applying pressure to shoe bottoms and is illustrated herein as embodied in a machine for use in cement-attaching soles to shoes.

Objects of the invention are to provide an improved pad and an improved pad box structure for use in applying pressure to shoes having substantially flat soles and also to shoes having spring or wedge heels of various heights. While the illustrated pad. box was developed particularly for use in cement-attaching soles to shoes which range in sizes from infants to youths and misses, with the aid of a cement sole-attaching machine of the character disclosed in an application for Letters Patent of the United States Ser. No. 636,202, filed October 4, 1932, in the name of Milton H. Ballard et al., it should be understood that the invention is not limited in its utility to embodiment in a machine of that character, nor to use in the manufacture of shoes of the type referred to.

Features of the invention include a pad comprising a fluid-filled bag or vessel provided with a sole-receiving wall extending the full length of the pad and having a heel portion which is integral with its shank and toe portions and is movable 'heightwise relatively thereto toaccommodate shoes having heels of different heights. As illustrated herein, the heel portion of the solereceiving wall is in the form of an extension or flap arranged to overlie a fluid-filled portion of V the pad. The flap may be moved heightwise toward or away from the underlying portion of the pad without changing the contour of the forepart and shank portions of its sole-receiving wall, these portions forming a wall of the fluidfilled chamber of the pad or vessel and accordingly being relatively flexible.

In accordance with another feature of the invention novel means is provided for yieldingly supporting the extension or flap relatively to both the flexible wall and the underlying portion of the pad, such means, as illustrated herein, including a movable member yieldingly mounted on guideways formed on a stationary portion of the pad box and adjustable heightwise of the pad by a cam carried by the movable member and arranged to engage a horizontal shelf or ledge provided on the stationary portion of the pad box.

- heel positioning gages with which the pad box heightwise away from said underlying portion, this means comprising a pair of filler plates carried by the movable supporting member and constructed and arranged to be moved longitudinally into the recess in the pad when the flap is adjusted away from the underlying portion into a position to accommodate a shoe having a fiat sole or a shoe which is to take a relatively low heel, the plates operating to cause the flap to be acted upon by the fluid-filled portion of the pad when pressure is applied to the sole and shoe. In this way substantially the same pressure is applied to the heel portions of the shoe and sole as is applied to their forepart and shank portions by the flexible wall of the vessel.

Still another feature of the invention consists in novel means for changing the normal volume of the pad or vessel, this means being illustrated herein as a pivoted plate-like member provided with a hinged extension for supporting a lower Wall of the pad and arranged to move this lower wall toward or away from the sole-receiving wall, thereby varying the normal conformation of the sole-receiving wall to accommodate the shoe to be operated upon without introducing additional fluid into or extracting it from the pad.

The above and other objects and features, including also novel mechanism for supporting is provided and for adjusting such gages heightwise an amount corresponding to the heightwise movement of the flap at the heel portion of the pad, will now be described with reference to the accompanying drawings and pointed out in the appended claims.

In the drawings,

Fig. l is a front elevation of a pad box embodying my invention including also mechanism for positioning the foreparts of a shoe and sole relatively to each other on the pad of the pad box and parts of the pressure-applying mechanism of a cement sole-attaching machine;

Fig. 2 is a sectional view taken on the longitudinal center line of the pad box shown in Fig. 1;

Fig, 3 is a plan view of the heel portion of the pad box illustrating the gage mechanis for positioning the heel ends of the sole and shoe on the pad;

Fig. 4 is a sectional View of the gage mechanism taken on the line IV-IV of Fig. 3;

Fig. 5 is a longitudinal sectional view of a portion of the mechanism at the heel end of the pad box showing the parts in a different position from that illustrated in Fig. 2; and

Fig. 6 is a plan view of a portion of the mechanism shown in Fig. 5. v

The invention is illustrated herein as embodied in a cement sole-attaching machine of the type disclosed in the Ballard application Ser. No.

casting l6 has on its upper side a mask plate l8 which is movable longitudinally of the pad P and carries a plurality of sole-engaging members or feelers I9 constructed and arranged to find the edge face of a sole placed by an operator on the pad. Mechanism, indicated by the reference numeral 20 in Figs. 1 and 2, is provided on the fixed casting ll) for adjusting the movable casting it relatively to the fixed casting about the virtual axis referred to, and further mechanism 22 (Fig. 1) including rack teeth meshing with manually-operated pinions, is provided for adjusting the mask plate longitudinally of the pad box.. The casting I6 also carries mechanism for actuating the sole-engaging feelers in any position longitudinally of the pad into which the mask plate (and feelers) may be adjusted, this mechanism being indicated generally in Figs. 1 and 2 by the reference numeral 24.

Since the various mechanisms referred to do not form a part of the present invention they are not described in further detail herein. These mechanisms are, however, fully disclosed and claimed in an application for Letters Patent of the United States Ser. No."724,546 filed May 6, 1934 in the names of Kennison and OBrien.

The pad box B is also provided with mechanism for positioning the heel portions of a sole and shoe relatively to each other on the pad P,

such mechanism being indicated generally in Figs. 1 and '2 by the reference numeral 26 and comprising a pair of sole-engaging fingers 2'8 and a separate pair of shoe-engaging fingers 311, the two fingers of each pair being provided respectively with sole gages 29 (Fig. 1') and shoe gages 3| and being connected by intermeshing gear segments 32 and 34, as shown in Figs. 2, 3 and 4. The two sets of fingers are carried by a group of three approximately horizontal castings 36, 38, and 46 secured to one another by cap screws 42, the lower casting 36 being pivotally connected by a pin 44 mounted in the casting to the upper ends of a pair of upwardly projecting arms 45- of a yoked lever 46 which, inturn, is pivoted on a transverse shaft 48 mounted in theopposite side walls of a movable casting 50. The opposite ends of the pin 44 are reduced in size and are located eccentrically with respect to the main portion of the pin so that when the pin is rotated in the casting 36' the position of the castings 3 6, 38, and 4llrelatively to the ends of the arms 45' will be changed thereby providing a quick adjustment for the sole-engaging fingers'heightwise of the pad. As shown in Fig. 2 the pin 44 ispheldl in either one of two positions by means of a springpressed plunger arranged to enter depressions in opposite sides of the pin to prevent the pin fro-m turning in the casting 36.

The rear or right-hand portion of the casting 36, as viewed in Fig. 2, is supported on the movable casting 50 by a roll 41 mounted between ears formed on a downwardly and rearwardly projecting lug 49 on the casting 36, the roll bearing upon a convex surface formed on the head of a vertical stud 5| adjustably mounted in a boss provided at the rear end of the casting 50. The roll 41 is kept in engagement with the convex surface of thelstud 5| by means of a tension spring 51 connected at its upper end to. the lug 49 and at its lower end to a pin in the casting 59. The lower end of the vertical stud bears on the upper end of an adjusting screw 69 threaded into the lower portion of the boss on the casting 59 and arranged to vary the heightwise position of the stud 5|. The casting 5!! is mounted for substantially vertical movement heightwise of the pad P on the rear or right-hand portion (as viewed in Figs. 1 and 2) of the fixed casting Ill and forms the means whereby the heel-end positioning gages and mechanism associated therewith are supported on the pad box.

' By reason of the intermeshing gear segments which connect each pair of gage fingers, the heel ends of the shoe and sole are moved laterally of the pad into positions determined by the gages themselves rather than by the operator. After they have positioned the sole and shoe on the pad, the gages are locked in position, the operation and locking of the gages being accomplished by means of projections 55 and 53 (Figs. 3 and 4) on each set of gages arranged to enter inclined slots 52, 54 formed in a pair of transverse slide members 56- and 58 which are mounted respectively in the castings 48 and 36 and are arranged to slide transversely or widthwise of the pad box, the slide members being held normally in inoperative positions by means of springs 55 and 51. As shown in Fig. 4, the sole gages 28 are pivoted directly on the casting 38 while the shoe gages 3B are pivoted on a separate slide bar 60 which is adjustable relatively to the casting 38 so that the shoe gages may be-moved bodily transversely of the pad relatively to the sole gages. The mechanism for adjusting the shoe gages transversely of the sole gages is indicated in Figs. 3 and 4 by the numeral 62 andcomprises an ec- .50 centric'engaging a transverse slot in the slide 68 and having a handle whereby the eccentric may be operated to move the slide along the casting 33, a spring 65 being provided to increase the friction between the two parts and thus maintain them in any adjusted position. The castings 36, 38, and 49' and the sole and shoe gages are also adjustable longitudinally of thepad by means of the yoked lever 48, the convex surface of the stud 5i acting to lift the gages slightly during their longitudinal movement so that they will not rub against the surface of the pad.

All the above mechanism and the means for operating it are fully disclosed and claimed in an application for Letters Patent of the United youths and misses shoes. Shoes coming within this range of sizes vary considerably in style and shape especially at the heel portions of the shoes, this variation being due largely to the different constructions desired at the heel ends of the shoes. Infants shoes, for example, may have flat soles or may be provided with spring 'heels formed by inserting leather wedges of varying thicknesses between the sole and the shoe bottom before the outsole is attached. In the larger sizes of shoes, for example, youths and misses shoes, the spring heel effect usually becomes more pronounced and the wedge which is inserted at the heel portion is in many instances made much thicker, often comprising two or even three thicknesses of leather. These wedges are sometimes secured to the shoe itself before the outsole is attached thereto, or they may be secured to the heel portion of the outsole. In either case, some provision must be made for adjusting the heel portion of the pad heightwise in order that it may accommodate these different thicknesses at the heel portions of the shoes. Moreover, if the position of the heel portion of the pad is to be varied heightwise to take care of the different conditions met with in operating upon shoes of the types referred to, the sole and shoe positioning gages must also be made adjustable heightwise an amount corresponding to the amount of heightwise adjustment of the pad. These adjustments are accomplished in the present case by mounting the heel-end positioning mechanism on the movable casting 50 and by providing a pad having a heel portion which may be moved heightwise relatively to its shank and toe portions, this heel portion also being supported by the movable casting 50. The construction and operation of this mechanism will now be described.

As stated above, the casting 58 is mounted on the main casting It for substantially vertical movement relatively thereto to permit the casting 59 to be adjusted heightwise of the pad. The casting 5i is slidably mounted on a pair of vertical guideways 66 (Figs. 1 and 2) formed on rearwardly projecting portions of the side walls of the main casting It. The casting 56 is supported on the guideways 65 by a pair of interconnected bell crank levers 68 and F0 joined by a solid cross portion .72 extending transversely of the casting and loosely surrounding a horizontal shaft M carried by downwardly projecting ears it formed on the lower portion of the casting to. The bell crank levers 68 and H3 are pivotally mounted on a fixed horizontal shaft l8 extending between the opposite side walls of the main casting I?! and two upwardly projecting arms 8%, 82 of these levers are connected by a pair of relatively heavy tension springs 84, 86 to the opposite ends of another horizontal shaft 88 also mounted in the sidewalls of the casting It), the central portion of the shaft 88 being supported by an upwardly projecting wall 98 formed near the central portion of the base of the casting It. The springs and 8% tend normally to urge the bell crank levers about their pivot 53 in a counterclockwise direction, as viewed in Figs. 1 and 2, to maintain the casting 5% in its uppermost position on the guideways 66.

The upper portion of the movable casting 50 is held on the guideways by means of a pair of substantially horizontal links SI and 93 (Figs. 1 and 2) pivotally connected to the main casting Ill by short horizontal pins 95 and pivotally connected to the movable casting 58 by similar pins 9], these links together with the lower arms of the interconnected bell crank levers 68 and 19 forming in effect a parallel motion arrangement whereby the casting 50 will move on the guideways 66 in a substantially vertical direction.

The fixed casting l5 has another upstanding wall 92 located near its rear or right-hand end, as viewed in Fig. 2, and the upper end of this wall is provided with a horizontally projecting ledge or shelf 94, the upper surface of which supports the rear end of the pad P. Located on the movable casting 56, a short distance below the under surface of the horizontal shelf 94, is a shaft 95 which extends between the side walls of the casting and, near its forward end as viewed in Fig. 2, carries a cam 98 (shown in broken lines in Figs. 2 and 5) arranged to engage the lower surface of the shelf 95. The tension springs 84 and 86 force the casting 58 upwardly on the guideways 66 to maintain the cam $3 in contact with the lower surface of the shelf 534, the position of the cam, of course, determining the heigh wise position of the casting 50 relatively to the fixed casting IE. The shaft 96 is rotated in its bearings in the casting 50 by means of a hand wheel mu secured to the forward end of the shaft, as viewed in Fig. 1, and provided at its periphery with numerals to indicate the position of the cam 98 with respect to the horizontal shelf 96. In Fig. 2, the cam is shown with its high part contacting with the lower surface of the shelf 94 so that the casting 5!] will have been moved into its lowermost position relatively to the main casting Ill.

The side walls of the movable casting 58 extend upwardly at the forward portion of the casting and at their upper ends are connected by a substantially horizontal wall m2 (Figs. 2 and 5) having a short groove formed in its lower surface. Secured in this groove by a screw m3 and a dowel N25 is a fixed T-shaped tongue I06. The tongue i015 projects rearwardly of the horizontal wall Hi2 and is provided along its lower edges with a pair of laterally projecting flanges H36 '(Figs. 2 and 6) which, together with the lower surface of the wall 502, form guideways for a pair of elongated plates IGB, I69 provided with slots whereby-they are mounted for sliding movement on the tongue i9 5 and may be moved longitudinally thereof toward or away from the pad in a manner presently to be described.

The pad P comprises a substantially rectangular hollow bag or vessel of rubber or similar material having an exposed upper wall He adapted to receive shoes and soles of various sizes and being provided with a fluid-filled chamber H2 which extends the full length of the pad, as shown in Fig. 2. A substantially vertical web 5 i i extends from the upper wall of the pad part way to the lower wall to strengthen the pad at the forepart but does not prevent fluid from entering the entire chamber. The forward portion of the pad is supported in the adjustable casting it referred to above and is provided at its lower side with an opening I I4 through which fluid, for example water, may be admitted into the chamber l H2. The opening l M is closed by a threaded bushing H6 having an enlarged portion inside the chamber for clamping the lower wall of the pad against a washer which surrounds the hub of the bushing and is forced against the wall of the chamber by a clamping nut H3, thus making the chamber water-tight. The bushing H5 is provided with a hole I20 through which fluid is. admitted into the chamber, the hole being pluggedby a screw I22.

, the reduced portion H3 of the chamber.

thick wall or flap I24 of rubber which is integral with the sole-receiving wall H at the forepart and shank portions of the pad, the rearwardly extending portion I24 being arranged to overlie The construction is such that the wall or flap I24 may be moved toward or away from the underlying portion I I 3 of the pad without changing the shape of the flap or distorting'the flexible wall of the chamber, an inclined slit I26 being formed in the pad where the flap joins the sole-receiving wall so' that movement of the flap heightwise relative: ly to the chamber may be facilitated. The flap I24 is provided with a metal insert I28 which is substantially U-shaped in plan view and extends around the marginal portion of the flap to stiffen this portion and render the flap as a whole relatively inflexible while permitting the inner portion which engages the sole to yield somewhat. The opposite lateral edge faces of the flap I24 have projections or flanges (not shown) formed thereon which fit into grooves in the side walls of the main casting I0 and can slide in these grooves. This permits movement of flap I24 longitudinally of the casting I0 as the flap is raised and lowered into different positions relatively to the underlying portion of the pad.

As shown in Figs. 2 and 5, the horizontal wall I02 of the casting 50 extends under the flap or wall I24 at the heel portion of the pad and supports this wall in a substantially horizontal position above the underlying portion I I3 of the pad. The underlying portion I I3 is confined to prevent its blowing out by means of an angular plate I30 which covers the top and rear walls of this portion of the pad and has an upstanding. flange at its forward end for engaging and supporting the short 'vertical portion of the pad which extends between the flap I24 and the upper wall of the underlying portion H3. The confining plate I30 is held in position by a fixed pin I32 mounted in the side walls of the casting 50 near the lower edge of the reduced portion of the pad. The angular plate I30 merely rests on the upper wall of the chamber and is movable heightwise therewith when this wall is displaced upwardly by pressure of a shoe against the pad.

It will be noted in Figs. 2 and that the plates I08, I09 on the T-shaped tongue I04 are located in such a position that they may be moved forwardly or toward the left, as viewed in Fig. 2, below the horizontal wall I02 of the casting 50 to fill up the space or recess created in the pad when this wall and the flap I24 are moved upwardly or away from the underlying portion H3 of the chamber by the cam 08, in the manner shown in Fig. 5. The mechanism for operating these filler-plates will now be described.

As shown in Fig. 6, the filler-plates I08, I09 are T-shaped in plan View, the wider portions being arranged to enter the space formed between the wall I02 and the portion I I3 of the pad by heightwise adjustment of the casting 50. .The plates I08, I00 are provided respectively with elongated slots I36, I38 which extend nearly the full length of the plates and surround the body portion of the tongue I04. These slots permit the plates to be moved along the tongue toward or awayfrom the ends of the slots contact with thetongue. The

length of the slots is sufiicient to permit the wide portions of the plates to be moved wholly into the recess in the pad when the plates are moved forwardly or to the left, as viewed in Fig. 2, and to permit them to be withdrawn entirely from the recess when they are moved in an opposite direction.

The upper filler-plate I08 has formed near its outer end, rearwardly of the elongated slot I36, as viewed in Fig, 6, a transverse slot I40 which engages a'pin I42 projecting downwardly from a hand lever I44 pivotally mounted on pin I46 secured in a forward portion of the movable casting 50. Movement of the hand lever I44, therefore, about its pivot I46 will cause the plate I08 to be moved toward or away from the recess in the rear portion of the pad. The lower fillerplate I00 is also provided with a transverse slot I48 located in front of the elongated slot I38 and arranged to engage a downwardly projecting pin I50 carried in the inner end of another hand lever I52 alsopivoted on the pin I46 and provided with a handle whereby the lower plate may be moved independently of the plate I08 toward or away from the recess in the pad. I

The downwardly projecting pins I42, I50 in the levers I44, I52 are provided near their lower ends with circumferential grooves in which are mounted respectively the forward ends of a pair of grasshopper springs I54, I56, the opposite ends of the springs engaging a pin I58 projecting upwardly from a boss I60 formed on an inner portion of the casting 50. The construction is such that when the filler plates are in the positions shown in Fig. 6, that is, when they are in their inoperative positions, the springs are expanded to hold the plates in such positions. As the plates are moved toward their operative positions by the hand levers I44, I52, the springs contract until the pins I42, I50 pass a line described by the centers of the fixed pivot I46 and the rear pin I58, after which the springs will again expand to urge the plates forcibly into operative position without the assistance of the operator.

The plates may be operated either separately or togethenthe outer arms of the hand levers being positioned to facilitate operation in this manner.

If it is desired to use only one filler-plate, howcomplished by mounting a vertical pin I62 on the lower plate I09 in position toengage, or to be engaged by, the wide portion of the upper plate I08 as the lower plate is moved toward the recess in the pad, or as the upper plate is withdrawn from the recess, thereby causing both plates to move together in the same direction. The reason for such construction is to prevent the lower plate I09 from being left in, or being moved separately into, operative position in the recess in the pad when the upper plate I08 is withdrawn since, if this should occur, the lower plate would be apt to be bent upwardly by upward movement of the underlying portion H3 of the pad as the shoe and sole, were pressed against the pad, the pressure of theshoe and sole causing the portion I I3 to expand and move upwardly with considerable force toward the horizontal wall I02 of the casting 50.

It will be seen from the above that when op the integral wall or flap I 24 at the heel portion of the pad may be moved upwardly by the casting 50 to position the sole-receiving surface of the pad properly for operating upon such shoes and the filler-plates I08, I09 may then be moved by the hand levers I44, I52 into the recess caused by moving the flap I24 away from the underlying portion I I3. Since the flap I24 is supported yieldingly above the fluid-filled portion II'3 of the pad and since the space between the two has been filled by the plates I08, I09, the flap will yield or move upwardly with the underlying portion II3. Accordingly, the heel portions of the sole and shoe will receive substantially the same pressure from the rear portion of the pad as is applied to the forepart and shank portions of the sole and shoe by the flexible wall IIO which overlies the portion IIZ of the chamber. If, however, a shoe having a relatively high heel such as that shown in Fig. 2 is .to be operated upon, the filler-plates are withdrawn and the cam 98 is rotated until its high portion engages the horizontal shelf 94 on the fixed casting I0, thereby forcing the movable casting 50 down wardly against the action of the springs 84, 86 to lower the horizontal wall I02 and the flap I24 until the latter is in a proper position to accommodate a shoe having a high wedge heel. Movement of the casting 50 heightwise of the pad P also moves the sole and shoe-positioning fingers or gages 28 and 30 (which are carried by the casting a corresponding amount heightwise of the pad so that these fingers will always be in position to engage the heel portions of the sole and shoe.

.. as viewed in Fig. 1, a downwardly projecting arm I64 carrying a spring-pressed pin I66 provided with a handle I 68 whereby the pin may be moved outwardly against a compression spring (not shown) which tends normally to hold the pin in its innermost position in the arm I64. The inner end of the pin is arranged to enter either one of two holes I10, I12, formed in a downwardly projecting portion I13. of the casting 50. By this construction the yoked lever 48 may be moved .3 from the rearwardly inclined position shown in Fig. 1 into a forwardly inclined position. The roll 41, which supports the rear ends-of the group of castings upon the convex head of the adjustable abutment 5I, will be moved forwardly over the convex surface of the abutment as the pivot pin 44 moves forwardly in an are about the shaft 48. The curvature of the abutment 5| is such that, as the mechanism is moved forwardly to accommodate a smaller shoe, the sole gages, which normally are arranged to clear the soleengaging surface of the pad, will be moved away from this surface slightly during the forward movement of themechanism and will then drop until they again just clear this surface. As stated, the abutment 5| may be adjusted heightwise of the movable casting 50 by the adjusting screw 69 to bring the sole gages closer to or farther away from the upper surface of the pad depending upon the thickness of the sole on the shoe to be operated upon.

As pointed out above, in some types of shoes, particularly infants and childrens shoes, leather wedges'of varying thicknesses are introduced between the heel portion of the sole and the shoe bottom before the sole is attached to the shoe to form what are known as spring heels, these wedges sometimes extending considerable distances beyond the edges of the soles. In order that the shoe gages 3|, which are positioned fairly close to the sole gages 29 when operating on shoes having soles of medium thickness, will not engage these wedges, the shoe gages are mounted in vertical slots 33 (Fig. 3) formed in the outer ends of the fingers 30, the gages being held in the slots by means of compression springs (not shown) which surround the shank portions of the'gages and hold the latter in the slots. By this construction the shoe gages 3| may be moved out of the vertical slots and their positions reversed so that the portions which previously extended downwardly toward the sole gages will now project upwardly, as shown in Fig. 1, thereby leaving sufficient space between the sole gages and the shoe gages for the edges of the inserted wedge pieces which project beyond the shoe upper and the edge of the outsole.

The sole-attaching machine is, of course, provided with suitable means for pressing the shoe and sole against the pad, this means comprising a swing frame I15 (Fig. 1) having a shoe engaging abutment I18 and a last engaging abutment. I80, these abutments being forced downwardly to apply sole-attaching pressure by mechanism which may be of the character disclosed in the Ballard et al. application Serial No. 636,202 previously mentioned.

In using the mechanism described above, if, for example, it is desired to operate upon a shoe A,

such as that shown in Fig. 5, which is to have a" substantially fiat sole S attached to a correspondingly flat shoe bottom, the flap I24 will be raised as described by the casting 50 to provide a substantially fiat sole-receiving surface on the pad. The filler-plates I08, I09 will then be moved forwardly by the operator to fill up the recess created between the supporting plate I02 and the underlying fluid-filled portion II3 of the pad. Pressure is then applied by the abutments I18, I80 to force the forepart and shank portions of the shoe and sole against the flexible wall I I0 of the chamber H2 and to force the heel portion of the sole against the wall or flap I24 which will yield with the underlying portion I I 3 of the pad so that the heel portion of the sole will be pressed against the shoe bottom with substantially the same pressure as is ,applied to the forepart and shank portions of the sole. The entire sole will, therefore, be pressed against the shoe bottom with substantially uniform pressure.

If, on the other hand, a shoe C, such as is shown in Fig. 2, is to be operated upon, having a fairly high wedge D inserted between an outsole E and the shoe bottom, the filler plates I08, I09 are withdrawn from the recess in the pad and the flap I24 is lowered by the casting 50 into the position shown in Fig. 2 or until the horizontal supporting wall I02 of the casting 50 is contacting directly with the angular confining plate I30. Pressure is now applied to the shoe and sole by the abutments I18, I80 with substantially the same results as were obtained in the case of a shoe having a flat heel portion.

It may also be desired in some cases to operate upon shoes the soles of which have not been molded and are relatively fiat but which nevertheless have fairly thick wedges inserted at their heel portions. The wedge may, of course, be attached either to the heel portion of the sole itself or to the bottom of the shoe before the sole is placed thereon. In such cases it is usually desirable first when the fiat sole "somewhat by tonal cam I84.

1 sole-attaching pressure is applied. In order to accomplish this the movable casting 50 may be adjusted upwardly heightwise of the casting ID the same amount as when a flat sole is to be attached to the shoe. The space or recess created in the pad by moving the flap I24 upwardly is now left entirely open, that is, neither filler-plate is moved into the recess. When pressure is applied to the shoe the flap I24 and the casting 50 will move downwardly until the horizontal wall I 82 of the casting contacts with the confining plate I38, thereby molding the heel portion of the sole until it conforms substantially to the shape of the wedge heel before any substantial sole-attaching pressure is applied The soles are, of

course, softened or tempered in the usual manner prior to molding to facilitate this operation and to secure better results. As stated, if a low spring or wedge heel is desired on the shoe, for example, one having only one thickness of leather between the sole and the shoe bottom, a substantially flat sole may be tempered and molded in adapted to operate upon shoes which may vary widely in sizes and which will require soles the bottom areas of which vary accordingly. Under such conditions if the shoes were to be operated upon by a machine which applied uniform pressure regardless ,of thesize of the shoe it would result in sinking the small shoes farther into the pad than the large shoes. This is undesirable because the excessive bulging of the portion I III of the sole-engagingsurface of the pad when asmall shoe was being operated upon would tend to roll the edge of the sole upwardly to an undue extent around the shoe upper at the forepart and shank portions of the shoe. Consequently, in orderto avoid this when operating upon a small shoe, for example, an infants or a childs shoe, means is. provided which has an effect similar to that which would be produced by adding fluid to the pad when a small shoe is to be operated upon and by removing fluid from the pad when a large shoe is to be operated upon, thereby changing the contour of the sole-engaging wall of the pad sufiiciently to accommodate these different sizes of shoes. The means referred to comprises a movable member or plate I82 (Fig. 2) pivotally mounted on the fixed shaft 88 and arranged to support that portion of the lower wall of the pad which substantially underlies the shank portion of the shoe. The pivoted plate I82 is supported normally in a horizontal position by means of a polygonal cam I84 secured to a shaft I86 mounted in bearings formedin a pair of ears I88 (one of which is shown in Fig. 2) projecting upwardly from the base of the fixedcasting ID, the plate I82 having a surfaceISll formed on its lower side for engaging the different surfaces on the polyg- The surfaces on the cam I84 are located at different distancesfrom the center of the shaft I86 so that when the cam is rotated. with the shaft to bring thedifferent surfaces thereon into engagement with the plate Hi2, the latter will" be pivoted about the shaft 88 to move the lower wall of the pad upwardly or downwardly rela tively to the sole-engaging wall I I8 of the pad P. Since the pad is filled with fluid, for example, water, this movement of the lower wall causes the contour of its sole-engaging wall to be changed to adapt the pad for the size of shoe to be operated upon. 7 In order that no portion of the lower or distortable wall of the pad will be exposed by the displacing movement of the pivoted plate I82, that end of the plate opposite the pivot 88 is provided with a transverse shaft I82 upon which is pivotally mounted a smaller plate I94 which forms in effect a hinged extension of the plate I82 and supports that portion of the pad which extends between the end of the plate I82 and the upstanding wall 92 of the fixed casting I 0. The upper end of the wall 92 is provided with a recess I98 in which the end of the plate I94 rests, this end as shown in Fig. 2 being rounded slightly to lessen the friction between the parts. Upon upward movement of the hinged plate I82 about its pivot 88, therefore, to displace the lower wall of the pad and change the contour of its soleengaging wall to accommodate a small shoe, the plate I84 pivots about the axis I92 and acts to support that portion of the pad which extends between the end of the plate I82 and the upstanding wall 92 of the casting III, thereby supporting this portion of the lower wall of the pad and preventing it from bulging excessively when substantial pressure is applied to the shoe and sole. 1

The polygonal cam I84 and shaft I86 are rotated by means of a hand wheel I98 (Fig. 1) se-;

cured to the forward end of the shaft I86 which, as viewed in Fig. 1, projects forwardly through the side wall of the casting II). The hand wheel I88 has the numerals I to 6, inclusive, marked thereon and spaced equidistantly about its periphery, the numeral I indicating that the surface of the cam which is nearest to the center of the shaft is engaging the surface I98 on the hinged plate I82 and the higher numerals indicating respectively that the surfaces of the cam which are located at progressively greater distances from the center of the shaft I86 are'engaging the surface I98 on the hinged plate I82.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. A pad box for use in applying pressure to shoe bottoms having, in combination, a pad for receiving a sole and shoe, said pad having an integral heel portion which is movable height wise while parallel to its own plane to accommodate different styles of shoes, and single means for varying the heightwise position of said heel portion.

2. A pad box for use in applying pressure to shoe bottoms having, in combination, a pad provided with a wall for receiving a sole and shoe, the heel portion of said wall comprising an integral flap overlying an adjacent portion of the pad and being variable heightwise relatively to said adjacent portion to accommodate shoes having heels of different heights, and means for varying the heightwise position of said flap.

3. A pad box for applying pressure to shoe bottoms having, in combination, a pad provided with an exposed wall for receivinga sole and shoe, said wall being greater in length than a sole and com-v prising at its heel portion an integral flap which is adjustable heightwise relatively to the shank and toe portions of the pad while maintained parallel to its own plane to accommodate shoes having heels of different heights, and single means for adjusting said flap heightwise.

4. A pad box for use in applying pressure to shoe bottoms having, in combination, a fluid-filled pad for receiving a sole and shoe, said pad having a flexible wall for engaging the forepart and shank portions of a sole and a flap integral with said wall for engaging the heel portion of the sole, the position of said flap being variable heightwise relatively to the flexible wall to accommodate shoes having heels of different heights, means for supporting said flap in sole-receiving position, and means for adjusting said supporting means to vary the heightwise position of said flap rela tively to the flexible wall.

5. A pad box for use in applying pressure to shoe bottoms having, in combination, a fluidfilled pad for supporting a sole and shoe, said pad having a distortable wall for applying pressure to the forepart and shank portions of a sole and a flap integral with said distortable wall for applying pressure to the heel portion of the sole, means for supporting the flap yieldingly in solereceiving position, and manually-operated means for changing the heightwise position of said supporting means to adjust the flap relatively to the distortable wall to accommodate shoes having heels of different heights.

6. A pad box for use in applying pressure to shoe bottoms having, in combination, a pad for receiving a sole and shoe comprising a fluid-filled vessel having a flexible wall for supporting the forepart and shank portions of a sole, a flap on the rear portion'of the vessel for supporting the heel portion of the sole, and a cam for varying the heightwise position of said flap relatively to the flexible wall of the vessel to accommodate shoes having heels of difierent heights.

7. A pad box for use in applying pressure to shoe bottoms having, in combination, a pad having a fluid-filled chamber extending the full length of the pad and provided with an exposed wall for supporting the forepart and shank portions of a sole, said pad having also a wall overlying the chamber at the rear portion of the pad and an ranged to engage the heel portion of the sole, said overlying wall being a continuation of the exposed wall of the chamber, and means for yieldingly supporting the overlying wall in sole-receiving position above the rear portion of the chamber.

8. A pad box for use in applying pressure to shoe bottoms having, in combination, a pad for receiving a sole and shoe comprising a vessel provided with a fluid-filled chamber extending the full length of the vessel and having a flexible wall for yieldingly supporting the forepart and shank portions of a sole and shoe, said vessel having also a wall overlying the rear portion of the chamber and arranged to engage the heel portion of the sole, means for supporting the overlying wall, and means for moving said wall into various positions relatively to the underlying portion of the chamber.

9. A pad box for use in applying pressure to shoe bottoms having, in combination, a fluid-filled pad for applying pressure to a sole and shoe pressed thereon, said pad having a flexible wall for engaging the forepart and shank portions of the sole and a flap connected to said flexible wall for engaging the heel portion of the sole, and means for yieldingly supporting said flap relatively to a fluid-filled portion of the pad so that pressure will be applied through said fluid-filled portion to the heel portions of the sole and shoe.

10. A pad box for use in applying pressure to shoe bottoms having, in combination, a pad for receiving a sole and shoe having a fluid-filled chamber arranged to underlie a sole placed on the pad, a flexible wall of said chamber engaging the forepart and shank portions of the sole, said pad having a flap overlying the flexible wall of the chamber at the heel portion of the sole for engaging said heel portion, and means for yieldingly supporting said flap relatively to the underlying portion of the chamber so that the heel portion of the sole will receive substantially the same pressure as the forepart and shank portions thereof.

11. A pad box for use in applying pressure to shoe bottoms having, in combination, a pad comprising a fluid-filled bag for applying pressure to a sole and shoe mounted thereon, said bag having a flexible wall for yieldingly engaging the forepart and shank portions of the sole, a rearward extension on said wall for engaging the heel portion of the sole, and means for yieldingly supporting said extension above a fluid-filled portion of the bag so that pressure will be applied through the bag to the heel portions of the sole and shoe.

12. A pad box for use in applying pressure to shoe bottoms having, in combination, a pad for receiving a sole and shoe provided with a fluidfilled chamber extending the full length of the pad, said pad having an exposed flexible wall for engaging the forepart and shank portions of the sole and a wall integral with said flexible wall for engaging the heel portion of the sole, said integral wall overlying the chamber at the heel portion of the pad, means for adjusting said integral wall heightwise relatively to the underlying portion of the pad to accommodate shoes having heels of different heights, and means for yieldingly supporting said integral wall above the chamber so that pressure will be applied through the chamber to the heel portions of the sole and shoe irrespective of the position into which said integral wall is adjusted.

13. A pad box for use in applying pressure to shoe bottoms having, in combination, a fluidfilled vessel for receiving a shoe and sole, a distortable wall of said vessel being arranged to engage the forepart and shank portions of the sole and yieldingly to support said portions when the sole and shoe are pressed against said wall, said vessel also having a wall integral with said distortable wall and located at the rear portion of the vessel for engaging the heel portion of the sole, means for supporting the integral wall in operative position above a fluid-filled portion of i the vessel, said means be ng constructed and arranged to yield with the distortable wall of the vessel when pressure is applied to the shoe and sole, and a cam for varying the heightwise position of the integral wall relatively to the underlying portion of the vessel.

14. A pad box for use in applying pressure to shoe bottoms having, in combination, a pad having a wall for receiving a sole and shoe, the rear portion of said wall being movable heightwise of the pad to accommodate shoes having heels of different heights, means for positioning the heel portions of the sole and shoe relatively to each other on the pad, and means for simultaneously efiecting a heightwise adjustment of the heel 15. A pad box for use in applying pressure to shoe bottoms having, in combination, a pad having a wall for receiving a sole and shoe, the heel portion of said wall being movable heightwise relatively to its shank and toe portions to accommodate shoes having heels of difierent heights, means for yieldingly supporting said heel portion in sole-receiving position, means for positioning the heel portions of the sole and shoe on the pad, and means for moving the heel portion of the sole-receiving wall heightwise relatively to its shank and toe portions, said means operating also to efiect a corresponding heightwise adjustment of the positioning means.

16. A pad box for use in applying pressure to shoe bottoms having, in' combination, a pad provided with a wall for receiving a-sole and shoe, the heel portion of said wall being adjustable heightwise relatively to an underlying portion of the pad to accommodate shoes having heels of different heights, and means for filling up the space created by adjustment of said heel portion away from said underlying portion.

17. A pad box for use in applying pressure to shoe bottoms having, in combination, a pad having an exposed wall for receiving a sole and shoe, the heel portion of said wall being integral with its shank and toe portions but being separated from an underlying portion of the pad, said heel portion being adjustable heightwise toward and away from said underlying portion to accommodate shoes having heels of different heights, means for adjusting the heel portion of said wall heightwise, and means for filling up the space created between said heel portion and the underlying portion of the pad when said heel portion is adjusted away from said underlying portion.

18. A pad box for use'in applyingpressure to shoe bottoms having, in combination, a fluidfilled pad provided with a'wall for receiving a sole and shoe, the heel portion of said wall being adjustable heightwise relatively to an underlying portion of the pad to accommodate shoes having heels of different heights, means for adjusting the heel portion of said wall heightwise relatively to said underlying portion, and plates for filling up the recess created in the pad by adjustment of said heel portion away from said underlying portion.

19. A pad box for use in applying pressure to shoe bottoms having,'in combination, a pad provided with a wall for receiving a sole and shoe,

the heel portion of said wall being movable heightwise relatively to an underlying portion of the pad to accommodate shoes having heels of various heights, a pair of plates for filling up the recess created in the pad by movement of said heel portion away from said underlying portion, and means for moving the plates into the recess either separately or together.

20. A pad box for use in applying pressure to shoe bottoms having, in combination, a pad provided with an exposed wall for receiving a sole and shoe, the heel portion of said wall being movable heightwise relatively to an underlying portion of the pad to accommodate shoes having heels of different heights, a pair of plates for filling up the recess created in the pad by movement of said heel portion away from said underlying portion, and manually operated means for moving the plates into the recess separately and for withdrawing them together.

21. A pad box for use in applying pressure to portion of the sole-receiving wall and the posi tioning means.

shoe bottoms having, in combinatiom'a pad for receiving a sole and shoe having a fluid-filled chamber extending the full length of the pad and provided with a flexible wall for engaging the forepart and shank portions of a sole, said pad having also a flap extending above the chamber at the rear portion of the padfor engaging the heel portion of the sole, means for supporting said flap above the rear portion of the chamber, means for adjusting said supporting means heightwise to vary the position of the flap relatively to the underlyingportion of the chamber, and plates for filling up the space created between the underlying portion of the chamber and the flap when the latter is moved into a higher position relatively to said underlying portion.

22. A pad box for use in applying pressure to shoe bottoms having, in combination, a pad for receiving a'sole and shoe comprising a fluidfllled vessel extending the full length of a sole and having a flexible wall for engaging the forepart and shank portions of the sole, said wall having a flap overlying the heel portion of the vessel for engaging the heel portion of the sole, means for adjusting the flap heightwise toward or away from the underlying portion'of the vessel, and means for filling up a portion of the space created between said underlying portion and the flap when the latter is adjusted into a higher position relatively to said underlying portion.

23. A pad box for use in applying pressure to shoe bottoms having, in combination, apad for receiving a sole and shoe having a fluid-filled chamber arranged to underlie a sole placed on the pad, a flexible wall of said chamber engaging the forepart and shank portions of the sole, said wall having an extension over the rear-portion of the chamber for engaging the heel portion of the sole, said extension being movable into various positions heightwise of the pad to adapt the latter for shoes the lasts in which have different springs, a member for supporting said extension above the rear portion of the chamber,

said member being in contact with the flexible wall of the chamber and moving therewith when pressure is applied to the shoe bottom, a cam for adjusting the supporting member heightwise of yieldingly supporting a sole and shoe having a fluid-filled chamber extendingthe fulllength of the pad, a flexible wall of said chamber being arranged to engage the forepart and shank portions of the sole, said pad having also aflap integral with the flexible wall of the chamber and overlying the latter at the heel portion ofthe pad for engaging the heel portion of the sole, means for yieldingly supporting said flap above the flexible wall of the chamber, means for positioning the heel ends of the sole and shoerelatively to each other on the pad, and means for adjusting the supporting means to move said flap into various heightwise positions relatively to the underlyingportion of the chamber, saidmeans being constructed and arranged to effect a corresponding heightwise adjustment of the heel-end positioning means. 1?

25. A pad box for use in applying pressure to shoe bottoms having, in combination, a pad comprising a fluid-filled vessel extending the full length of a sole and having a flexible wall for yieldingly supporting the forepart and shank portions of the sole, said vessel having also a flap integral with the flexible wall and overlying the rear portion of the vessel for supporting the heel portion of the sole, a casting for holding the flap yieldingly in sole-receiving position, gages mounted on the casting for positioning the heel portions of the sole and shoe relatively to each other on the pad, a cam for adjusting the casting heightwise to move the flap toward or away from the underlying portion of the vessel thereby positioning said flap for operating upon shoes having heels of different heights, said cam operating also to effect a corresponding heightwise adjustment of the positioning gages, and plates carried by the casting and movable longitudinally of the vessel for filling up all or a portion of the space created between the flap and the underlying portion of the vessel when said flap is moved away from said underlying portion.

26. A pad box for use in applying pressure to shoe bottoms having, in combination, a flu'idfilled pad having a flexible wall for engaging the forepart and shank portions of a sole and a relatively inflexible wall integral with said flexible wall and overlying the rear portion of the pad for engaging the heel portion of the sole, adjustable means for supporting the inflexible wall above the rear portion of the pad, a cam for adjusting the supporting means heightwise of the pad to move the inflexible wall toward or away from the underlying portion thereof; a pair of plates for filling up the space formed between the inflexible wall and the underlying portion of the pad when said wall is moved away from said portion, and means for maintaining said plates in operative position.

27. A pad box for use in applying pressure to shoe bottoms having, in combination, a fluidfilled pad arranged to support a sole placed thereon and having a flexible wall for engaging the forepart and shank portions of the sole, said flexible wall having a flap overlying the rear portion of the pad for engaging the heel portion of the sole, said'flap being movable into various positions heightwise of the pad to adapt the pad for operating upon shoes having heels of different heights, a movable member for yieldingly supporting said flap above the rear portion of the pad, said member being arranged to move with the rear portion of the pad when pressure is applied to the shoe and sole, a cam for adjusting the movable member heightwise of the pad to move the flap toward and away from the rear portion of the pad, manually-operated plates for filling up the space created between said flap and said rear portion when the flap is moved away from said portion, and means for holding the plates either in or out of operative position.

28. A pad box for use in applying pressure to shoe bottoms having, in combination, a pad hav ing a fluid-filled chamber arranged to underlie a sole and provided with a flexible wall for engaging the forepart and shank portions of the sole, said wall having an extension overlying the rear portion of the chamber for engaging the heel portion of the sole, a movable casting for yieldingly supporting the extension above the chamber, a cam for adjusting said casting heightwise of the padto move the extension toward and away from, the underlying portion .of the chamber, a pair of plates for filling up the space between the extension and the underlying portion of the chamber when said extension is moved away from said underlying portion, manuallyoperated levers for operating said plates, and springs for maintaining the plates either in or out of operative position, said springs acting also to force the plates fully into operative or inoperative positions should the operator fail to accomplish this with the manually-operated levers.

29. A pad box for use in applying pressure to shoe bottoms having, in combination, a pad for receiving a sole and shoe having a fluid-filled chamber arranged to underlie a sole placed on the pad, said pad having an exposed flexible wall for engaging the iorepart and shank portions of the sole and a flap integral with said flexible wall and overlying the rear portion of the chamber for engaging the heel portion of the sole, means for confining the portion of the pad underlying the flap, a member for supporting said flap above said underlying portion, said member engaging said confining means, a cam for adjusting the supporting member heightwise of the pad to move the flap toward and away from the underlying portion of the pad, filler-plates slidably mounted on the supporting member and movable longitudinally of the pad for filling up the recess created in the padbetween the flap and the underlying portion oi the pad when said flap is moved away from said portion, thereby maintaining the supporting member in engagement with the confining means, levers for operating said filler-plates, and compression springs for holding the plates either in or out of the recess, said springs being constructed and arranged to expand as the plates approach both their operative and inoperative positions so that they will hold the plates firmly in either position.

30. A pad box for use in applying pressure to shoe bottoms having, in combination, a fluid-filled vessel extending the full length of a sole and having a flexible wall for engaging the forepart and shank portions of. the sole, a Wall on the vessel integral with said flexible wall and overlying a fluid-filled portion of the vessel for engaging the heel portion of the sole, an adjustable casting for supporting the integral wall yieldingly above the fluid-filled portion of the vessel, a cam for adjusting the casting heightwise to move the integral wall toward or away from said underlying fluid-filled portion of the vessel, a pair of plates 'for filling up the recess created in the vessel between the integral wall and the underlying fluid-fllled portion of the vessel when said wall is moved away from said portion, and means for moving the plates into and out of the recess separately,

31. A pad box for use in applying pressure to shoe bottoms having, in combination, a fluidfilled vessel extending the full length of a sole and having a flexible wall for engaging the forepart and shank portions of the sole, a flap on the vessel integral with said flexible wall and overlying the rear portion of the vessel for engaging the heel portion of the sole, an adjustable casting for supporting said flap yieldingly above the rear portion of the vessel, a cam for adjusting said casting heightwise of the vessel to move the flap toward or away from the underlying portion of the vessel, a pair of plates for filling up the recess created in the vessel between the flap and the underlying portion when said flap is moved away from said portion, said plates beingmovable longitudinally of the vessel, means for limiting the longitudinalmovement of the plates, and means for moving-the plates into the recess andw-ithdrawing them therefrom either separately'or together.

- 32, A pad box for use in applying pressure to,

shoe bottoms having, in combination, a pad for supporting a sole and shoe including their heel portions, the rear portion ofsaid padbeing integral with its forepart and shank portions and being adjustable heightwise relatively thereto to accommodate shoes having heels of different heights, adjustable means for supporting the rear portion of the pad in various positions heightwise of the pad, a cam on the supporting means for adjusting said means heightwise, aflxed abutment on the pad box for engaging said cam to determine the heightwise position of. said supporting means, and means for holding the supporting means yieldingly in the position determined by the cam and abutment.

33. A pad box for use in applying pressure to shoe bottoms having, in combination, a fluidfllled pad for receiving a sole and shoe, the heel portion of said pad being integral with its forepart and shank portions and being adjustable heightwise relatively thereto to accommodate shoes having heels of different heights, an adjustable casting for yieldingly supporting the heel portion of said pad in various positions, a rotatable cam on the casting for adjusting the latter heightwise of the pad, a fixed abutment on the pad boxfor engaging said cam thereby determining the heightwise position of the casting and the heel portion of thepad, and springs for urging the casting heightwise of the pad to keepthe cam in engagement with the fixed abutment.

34. A pad box for use in applying pressure to shoe bottoms having, in combination, a fluid-filled pad for supporting a sole and shoe, said pad having a continuous sole-receiving wall which is flexible under the forepart and shank portions of the sole and relatively inflexible under its heel portion, the inflexible portion of said wall being supported yieldingly above a fluid-filled portion of the pad so that the heel portions of the sole and shoe will receive substantially the same pressure as is applied by the flexible portion of the wall to their forepart and shank portions, a movable casting for yieldingly supporting the inflexible portion of the wall above the fluid-filled portion of the pad, said casting being arranged to slideon guideways extending heightwise of the pad, a cam on the movable casting for determining the heightwise position of the casting on the guideways, a stationary abutment on the pad box arranged to be engaged by said cam, and a pair of springs for holding said casting yieldingly in the position determined by the cam and stationary abutment.

35. A pad box for use in applying pressure to shoe bottoms having, in combination, a fluid filled pad for supporting a sole and shoe, said pad having a sole-receiving wall which is flexible under the forepart and shank portions of the sole and relatively inflexible under the heel portion of the sole, the inflexible portion of said wall being integral with the flexible portion, a movable casting for yieldingly supporting the inflexible portion of the wall above a fluid-filled portion of the'pad, said casting being adjustable heightwise of the pad, a. rotatable cam on the casting for adjusting said casting heightwise of the pad, a stationary abutment onthe pad box arranged to be engaged by the cam to determine the heightwise position of. the casting, springs ates-per for holding. said casting yieldinglyfin the position determined by the cam and stationary abut-' ment, and filler plates for flllingup thespace created between the inflexible portion of the wall and the underlying fluid-filled portion of the pad when said inflexible portion is moved by the casting away from said underlyingiportion.

having a wall for receiving a sole, a supporting structure for said pad, a member pivoted on the supporting structure and movable to displace a portion of a wall of the pad opposite its solereceiving wall to change the contour'of 'saidsole;

receiving wall, and means pivoted on saidm'emberf for supporting an adjacent portion of said opplacing a portion of a wall of the pad to change the contour of its sole-receiving wall, means for moving said member about its pivot, and a member hinged to the pivoted member to prevent the formation of an opening in the supporting structure during the displacing movement.

38. Ina pad box for applying pressure to shoe bottoms, the combination of a fluid-filled pad having an exposed wall for receiving' a sole, a

supporting structure for said pad, said structure having two upstanding walls extending transversely of the pad, a hinged plate pivotally mounted on one upstanding wall and engaging the other upstanding wall to support a' portion of the pad, and a cam for moving said plate about its pivot 'to displace the portion of the pad supported thereby, thereby changing the contour of the sole-receiving wall of the pad,

' said plate remaining in contact with both upstanding walls of the supporting structure during its pivoting movement.

39. In a pad box for applying pressure to shoe bottoms, the combination of a fluid-filled pad having a sole-receiving wall and an opposite distortable wall, a supporting structure for said pad, said'structure having opposite'upstanding walls extending transversely of the pad, a plate pivoted on one upstanding wall and extending part way to the opposite wall, said plate beingoperable todisplace a portion of the distortable wall of the pad toward the sole-receiving wall thereby changing the contour of said sole-receivingwall, a cam for supporting said plate and moving it about its pivot to displace said distortable wall, and a member pivotally connected to said plate and arranged tocover the opening between the end of the plate and said opposite wall irrespective of the position of said plate.

40. A pad box for applying pressure'to shoe bottoms having, in combination, a fluid-filled pad having a sole-receiving wall and'an opposite distortable wal1, a supporting structure for said pad, a hinged plate pivoted on said supporting structure for engaging a portion of" said distort 36. In a pad box for applying pressure to shoe? bottoms, the combination of a fluid-filled pad 41. In a pad box for applying pressure to shoe bottoms, the combination of a fluid-filled pad having an exposed wall for receiving a sole and an opposite distortable wall, a supporting structure for said pad, said structure being provided with opposite upstanding walls extending transversely of the pad, a plate pivotally connected at one end to one upstanding wall and extending part way to the opposite wall, a polygonal cam 10 for supporting the other end of the plate and for moving said plate about its pivot into various positions to displace the distortable wall of the pad difierent amounts toward the sole-receiving wall thereby changing the contour of said solereceiving wall, and a second plate pivotally connected to the first plate and arranged to cover the space between said first plate and said opposite wall in any position into which the first plate is moved,

FRANK KENNISON. 

